Hi, I just put my first app on the google play store and I have it set up with admob. I published it because I finally thought it was working correctly but after using it, I've noticed that the ads do not show up all the time.If I open the app the ad might show up, then if i close it and re open it, it usually isn't there. Now I realize that the ads do take a little bit of time to load but it seems like the ads are there, just not visible.What I mean is I touched the spot where the ad is supposed to be and it clicked the ad and took me to the ad page.So the ads are there but aren't being visible like half the time.

So, in the case maybe my description was hard to understand here is my issue in a list of steps that happen

- I open the app on my phone (Samsung Galaxy S6 Edge)- The ad is not visible- I wait a few seconds and click where the ad should be showing and it takes me to the ad landing page- If I go back from the ad landing page to my app, the ad is visible (basically if I exit the app and reopen without ending the process the ad shows up)

I just don't understand why the ad is loading, but not visible when you first start the app